package forever.com.servlet;

import java.io.IOException;
import java.io.PrintWriter;
import java.util.List;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import net.sf.json.JSONArray;
import forever.com.pojo.TripMemory;
import forever.com.service.impl.RelationshipService;
import forever.com.service.impl.TripMemoryService;
import forever.com.service.intf.RelationshipIntf;
import forever.com.service.intf.TripMemoryIntf;
import forever.com.vo.FollowVO;
import forever.com.vo.UserInfoVO;

public class GetFollowMemoryServlet extends HttpServlet {

	/**
	 * 
	 */
	private static final long serialVersionUID = 1L;

	/**
	 * Constructor of the object.
	 */
	public GetFollowMemoryServlet() {
		super();
	}

	/**
	 * Destruction of the servlet. <br>
	 */
	public void destroy() {
		super.destroy(); // Just puts "destroy" string in log
		// Put your code here
	}

	/**
	 * The doGet method of the servlet. <br>
	 *
	 * This method is called when a form has its tag value method equals to get.
	 * 
	 * @param request the request send by the client to the server
	 * @param response the response send by the server to the client
	 * @throws ServletException if an error occurred
	 * @throws IOException if an error occurred
	 */
	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {

		doPost(request,response);
	}

	/**
	 * The doPost method of the servlet. <br>
	 *
	 * This method is called when a form has its tag value method equals to post.
	 * 
	 * @param request the request send by the client to the server
	 * @param response the response send by the server to the client
	 * @throws ServletException if an error occurred
	 * @throws IOException if an error occurred
	 */
	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {

		request.setCharacterEncoding("utf-8");
		response.setCharacterEncoding("utf-8");
		
		HttpSession session = request.getSession();
		PrintWriter out = response.getWriter();
		
		UserInfoVO userinfo = (UserInfoVO)session.getAttribute("user");
		
		RelationshipIntf relationService = new RelationshipService();
		TripMemoryIntf tripService = new TripMemoryService();
		List<FollowVO> followList = relationService.getFollowListByFollowerid(userinfo.getUser_id());
		List<TripMemory> memoryList = tripService.getMemoryList();
		for(int i = 0;i<memoryList.size();i++){
			int j =0;
			for(j =0;j<followList.size();j++){
				if(memoryList.get(i).getUser_id()==followList.get(j).getFollowed_id()){
					break;
				}
			}
			if(j==followList.size()){
				memoryList.remove(i);
			}
		}
		
		JSONArray jsonMemoryList = JSONArray.fromObject(memoryList);
		out.write(jsonMemoryList.toString());
		out.flush();
		out.close();
	}

	/**
	 * Initialization of the servlet. <br>
	 *
	 * @throws ServletException if an error occurs
	 */
	public void init() throws ServletException {
		// Put your code here
	}

}
